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经典短语透视
【短语1】in addition to
【点拨】in addition to意为"除……之外(还有)"，其中to为介词，所以后面要跟名词、代词和动名词等。如：
In addition to giving a general introduction to computers， the course also pro-vides practical experience.
【拓展】
1. besides作介词时，和其意思和用法相同。如：
We have lots of things in common besides dance.
2. in addition相当于副词，可译为"另外，加之"。如：
You need money and time； in addition， you need intelligence.
【短语2】draw upon / on
【点拨】draw upon / on意为"凭借，利用"。如：
Reread your previous essays for ideas and information， which you may want to draw upon.
A writer has to draw upon his imagination and experience.
【拓展】draw on / upon还可意为"临近，(时光)渐渐过去"。如：
Winter is drawing on.
It grew colder as night drew on.
【短语3】be true of
【点拨】be true of 意为"(某种情况)适用于，适宜于"。如：
This principle is true of everybody.
The food is good and the same is true of the service.
【拓展】根据下列例句体会与true相关短语的意义：
The picture is true to life. (逼真)
He is always true to his promise. (信守)
My father said I should be a lawyer and it has come true. (实现)
热点语法聚焦
一、现在完成进行时由"has / have been + 动词-ing"构成，其主要用法有：
1. 表示动作从过去开始一直持续到说话时，并且还有可能继续下去。这一用法常和表示一段时间的状语，如：
For three years， all this time， all one’s life， all the morning， these few weeks.
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